Domi12105 years ago000The volume sometimes changes during a conversation. At the beginning only via the USB dongle, now partly also on the mobile. Does anyone know the problem and a solution?Show in original language (German)1 answer
Valerie.dussex7 years ago000Where can I buy the cable (which could be the one in the box)?Show in original language (German)2 answers
Badi718 years ago000Is the USB dongle required for the connection to the laptop or can this be connected directly via Bluetooth?Show in original language (German)2 answers
